Raising Speed Limits in the Name of Traffic Safety

Business Insider offers a platform for an argument favored by the National Motorists Association and a particularly vocal Michigan state police officer: that speed limits are too slow to be safe.

2 minute read

November 8, 2017, 12:00 PM PST

By James Brasuell @CasualBrasuell


Speed Limit

Rhonda Roth / Shutterstock

An article by Alex Mayyasi makes the case that the system by which the United States regulates the speed of vehicles is irrational and unsafe. That is, as the headline of the article states, "There's convincing evidence that speed limits are way too low."

Mayyasi cites Lieutenant Gary Megge of the Michigan State Police as a leading advocate in favor of higher speed limits. Lt. Megge's argument centers on the 85th percentile rule, which traffic engineers are supposed to use to determine speed limits, though speed limits are often set below that level. Thus, according to Lt. Megge, most drivers speed. In his own words, Lt. Megge describes why he thinks that's wrong:

“We all speed, yet months and months usually pass between us seeing a crash,” Lt. Megge tells us when we call to discuss speed limits. “That tells me that most of us are adequate, safe, reasonable drivers. Speeding and traffic safety have a small correlation.”

Going a step further, Lt. Megge believes that raising speed limits would make roads safer by putting an end to the tacit understanding that the speed limit is set too low. Mayyasi explains: "With higher speed limits, Megge says, police officers could focus their resources on what really matters: drunk drivers, people who don’t wear seat belts, drivers who run red lights, and, most importantly, the smaller number of drivers who actually speed at an unreasonable rate." Megge also says that the only way to lower speeds is through engineering choices: "It’s more expensive, but unlike changing the number on a sign, it’s effective," paraphrases Mayyasi.

Tuesday, October 31, 2017 in Business Insider

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Aerial view of single-family homes with swimming pools in San Diego, California.

San Diego to Rescind Multi-Unit ADU Rule

The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

March 9, 2025 - Axios

Canadian flag in foreground with blurred Canadian Parliament building in background in Ottawa, Ontario, Canada.

Has President Trump Met His Match?

Doug Ford, the no-nonsense premier of Canada's most populous province, Ontario, is taking on Trump where it hurts — making American energy more expensive.

March 11, 2025 - Toronto Star

Close-up of green ULEZ sign in London, UK.

Study: London ULEZ Rapidly Cleaning up Air Pollution

Expanding the city’s ultra low-emission zone has resulted in dramatic drops in particle emissions in inner and outer London.

March 10, 2025 - Smart Cities World

Tents set up by unhoused people under freeway overpass in San Jose, California with American flag above them.

San Jose Mayor Takes Dual Approach to Unsheltered Homeless Population

In a commentary published in The Mercury News, Mayor Matt Mahan describes a shelter and law enforcement approach to ending targeted homeless encampments within Northern California's largest city.

March 14 - The Mercury News

Blue Atlanta streetcar on street in downtown Atlanta, Georgia.

Atlanta Changes Beltline Rail Plan

City officials say they are committed to building rail connections, but are nixing a prior plan to extend the streetcar network.

March 14 - Saporta Report

New York City city hall building.

Are Black Mayors Being Pushed Out of Office?

The mayors of New York, St. Louis, and Pittsburgh all stand to lose their seats in the coming weeks. They also all happen to be Black.

March 14 - Governing

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.